BMW M3 Owner's Manual page 227

Reference
Convertible
1 Vehicle width, with exterior mirrors:
77.2 in/1,961 mm
2 Vehicle height: 54.5 in/1,384 mm
Vehicle height, 335is: 53.9 in/1,370 mm
3 Vehicle width, without exterior mirrors:
70.2 in/1,782 mm
Smallest turning circle dia.: 36.1 ft/11.0 m.
226
Technical data
Online Edition for Part no. 01402918638 - © 02/13 BMW AG
4 Wheelbase: 108.7 in/2,760 mm
5 Vehicle length: 181.9 in/4,620 mm